Which of the following statements is NOT true of "fractional ownership"

A．Fractional ownership allows people share the use of highly expensive commodities.

B．Thanks to "fractional ownership", people can afford luxuries like a super yacht.

C．Fractional ownership is identical to "time sharing".

D．Fractional ownership means part of the property right to the buyer.

在你身体状况或精神状况不佳的时候，避免练习陌生的动作或（）的动作。

A、难度较小

B、难度中等

C、难度一般

D、难度较大